Cable bracket



sept- 16, 1930- G. D. ALvoRD.

QABLE BRACKET Filed May 18, 1927 INVE/VTaR #QM )lll Tis/5:55

Patented Sept.- 16, 1930 UNITE-D STATES PATENT OFFICE GROVE D. ALVORD, 0F SYRACUSE, NEW YORK, .AS-SIGNOR, BY MESNE ASSIGNMENTS, T0 BLAW-KNOX COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF NEW JERSEY CABLE BRACKET Application ined may 1s,

This invention. relates to a new and improved bracket for attaching ground cables of high tension electrical lines to carrying towers or other supports.

The main object of my invention is to provide a means whereby a ground cable may be securely attached to a support by means of a iexible connection which will accommodate itself to Vany swaying or movement of the cable.

Another object of my invention is to provide a means whereby the electrical connection between the ground cable and the support will be at all times positive without the use of any auxiliary connections.

Heretofore ground cables have been 4attached in different makeshift ways and with the use of devices which were designed and made for entirely diii'erent purposes, or else they have been attached by means of rigid connections.

My device is designed to give a clamp entirely dierent from and better than anything heretofore conceived.

Other objects and advantages relate to the detailsand form of the device, all as will more fully appear lfrom the following' description taken in connection with the accompanying drawings, in which: n

Figure 1 is a perspective view of my device mounted on top of a carrying tower.

Figure 2 is a section on line 2 2,Figure 1.

Figure 3 is a section on line 3 8, Figure 1.

Figure 4 is a section on line H, Figure 2.

In the diderent figures, like numbers refer to like parts.

My device consists of a saddle shaped upper member 1 with depending extremities 2, Q and carrying a longitudinal groove 3- on the top thereof, said roove extending throughout the length o .said member 1 and being open at both ends. Said groove 3 is substantially semi-circular with its opposite sides substantially perpendicular and extended above the axis of the semi-circular ortion tangential to the ends thereof. The ottom of member 1 at substantially the center point thereof has an upwardl extending recess 4 substantially cu ical in shape with a further recess 1927. semi No. 192,261.l

5 in the top thereof adapted to receive the top of a ball 6- and having on the bottom edge of said recess l1- two opposed inwardly extending lugs 7 .on the sides corresponding to the longest dimension of member 1 The lower member of my device 8 consists of a body'portion 9- 'adapted to be fastened to a tower a or other support by means of bolts 10, 10 or other convenientl means. The body portion 9 carries on its top a ball 6 adapted to nest in recess fl- On two opposed sides of ball--- there are provided vertical slots 11, 11 of a size and shape to receive lugs 7, 7 i i The ends of member 1 are provided with a cable clamping means such as clamps 12, 12- adapted to receive a cable 13 land confine it in groove 3 1n operation my device works as follows bottom member 8 is fastened in position on tower a or other support with ball 6- extending upwardly and with slots 11, 11- facing the next adjacent towers or other supports (not shown).

Upper member 1 is then positioned on top of ball 6 with lugs 7, 7 registering in slots 11, 11 Upper member 1 can then be lowered until ball 6 nests in recess 5- with lugs 7, 7 below the center of the ball. Upper member 1 is then given a quarter turn placing groove 3 in a position to receive cable 13 longitudinally. In this position upper member 1 cannot be removed from lower member 8 as the distance between lugs 7, 7 is less than the diameter of the ball, but it may freely move in different directions. Cable 13 is then placed in groove 3 and fastened in position by clamps 12, 12 Upper member 1 can now accommodate itself to the movement of cable 13- but will beheld by such cable 13 from a rotary movement sufficiently great to permit lugs 7, 7 to register with slots 11, 11

Altho I have shown and described a speciic construction and form of parts, as illustrative of an embodiment of my invention, I do not desire to restrict myself to the exact 2 mesme form, shape or arrangement of parts, as various changes may be made Within` the scope of the appended claims.

'I claim:

5 1, In a deviceof the class described, a base plate adapted to be secured to the top of a support, a vertically extending ball ontthe top of the base plate, an elongated 'member e having a recess in the bottom thereof adapted w to receive and retain the ball, and to permit free movement of the ball therein, a grove in the u per surface of the elongated member adapte to receive a cable, and means on each end of the elongated member for securing a l5 cable in the roove.

2. In a device of the class described, a base plate adapted to be secured to a sup ort and having a ball extending vertically'y rom the top thereof, a saddle shaped member having a groove in its'upper surface adapted to receive acable and having a recess in its under surl:tace adapted to receive and retain the ball, the ends of the saddle shaped member being so disposed in relation to the recess that'a I line drawn between them will pass beneath the center point of the recess, and means for securi g a cable in the groove in the saddle shaped member. y I In witness whereof I have hereunto set my 3., hand this 5th day of May, 1927.

. GROVE D. ALVORD. 

